$ git clone -n https://gitee.com/src-opencloudos-rpms/libtiff.git /var/lib/mock/dist-oc8-build-118701-69684/root/chroot_tmpdir/scmroot/libtiff
Cloning into '/var/lib/mock/dist-oc8-build-118701-69684/root/chroot_tmpdir/scmroot/libtiff'...
$ git fetch origin cebcdde68242c39fe3957a8e6ae83836ed23d6e2:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libtiff
 * [new ref]         cebcdde68242c39fe3957a8e6ae83836ed23d6e2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cebcdde import libtiff-4.0.9-33.tl3